In southern Netherlands at the coast, with a 10 sec exposure, iPhone 12 mini, main cam, I was able to see some pink and green with streaks. To my eyes it was like faint clouds that changed to quickly to be clouds, better visible when I didn’t look straight at them. Your pics are something else, but what was it like to your eyes?
In the east of the Netherlands I was seeing something similar to what you describe, but when particularly active I also saw a reddish glow in places. This is a timelapse I made around the same time:
https://imgur.com/a/kloWEOl
From Bournemouth in the UK, I got the same impression as you - looking like cloud sheets, but more straight lines than, say, what windblown contrails look like. No clear color visible to me but the location wasn't anywhere near "dark".
I've seen impressive (and colorful) aurora before, and can well imagine it might've looked splendid in (darker) places. Don't give up ... maybe more on the way.
The colors in my pics are a bit more intense than they were to the eyes, but not by that much. They were all clearly visible, including all the structures, glowing. It is pretty dark where I come from, the next city is dozens of kilometers away.
